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  3. 　　As a result, the modern world is increasingly populated by intelligent robots whose presence we barely notice but whose univer

　　As a result, the modern world is increasingly populated by intelligent robots whose presence we barely notice but whose univer

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问题 　　As a result, the modern world is increasingly populated by intelligent robots whose presence we barely notice but whose universal existence has removed much human labor. And thanks to the continual miniaturization of electronics and micro-mechanics, there are already robot systems that can perform some kinds of brain and bone surgery with far greater precision than highly skilled physicians can achieve with their hands alone. But if robots are to reach the next stage of laborsaving utility, they will have to be able to make at least a few decisions for themselves.
　　Despite a spell of initial optimism in the 1960s and 1970s when it appeared that transistor circuits and microprocessors might be able to copy the action of the human brain by the year 2010, researchers lately have begun to extend that forecast by decades if not centuries.
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答案　　结果，世界上的智能机器人越来越多，虽然它们的存在几乎无法察觉，但它们的广泛使用节省了大量的人力。而且，由于电子技术和微机械技术不断缩微化，我们现在已经拥有能够进行脑科和骨科手术的机器人系统，其精确度远比技术高超的外科医师单单用手做手术高。但是如果机器人还要进一步节省劳力的话，它们必须至少能自己做出一些决定。 　　虽然早在20世纪六七十年代，人们曾一时乐观地估计到2010年控制电路和微处理器可以让机器模拟人脑的行为，但研究者最近已开始将这一目标的实现推后几十年，如果不是几百年的话。
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